22 August, 2017.
Sgeir a Phuirt, island of Canna on the west coast.
12 mm animal at 22 metres.
Water temperature 13°C.
Sony α6000 in Nauticam housing, Zeiss 50 mm macro lens and 2 x Inon D-2000 flashes.
for more information about this species go to one of the links below